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n in (-oo:+oo)
(5*(n+4))/3+n-8 = 0
(5*(n+4))/3+(3*n)/3+(-8*3)/3 = 0
5*(n+4)+3*n-8*3 = 0
8*n-24+20 = 0
8*n-4 = 0
(8*n-4)/3 = 0
(8*n-4)/3 = 0 // * 3
8*n-4 = 0
8*n-4 = 0 // + 4
8*n = 4 // : 8
n = 4/8
n = 1/2
n = 1/2
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